The event is at theButler Community College gymnasium, 901 S.W. Haverhill Road.Doors at 11:45 a.m. Obama's scheduled arrival time has not been announced yet.The event is free and open to the public. But an RSVP is required. To RSVP, go to http://my.barackobama.com/ElDoradoCommunityEvent or call 316-789-5194.